Advanced auto were the ones giving me problems. I have had same trouble from autozone its been a long time since I purchased from them. O'Rielys brand was the alternator that worked thats who i normally use but they did not have one in stock in January. I will say this the staff at Advanced Auto was very upset that I had so much trouble. The person I had dealt with true the whole thing kept apologizing for the problem. No one ever got hateful witch is more than I could say for some parts stores.